Get image url from string

Question

I am parsing the xml file, and I can parse the NSLog, but my problem is that I need to get the image URL from this "line":

<p> <a href="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex43.jpg"><img class="alignnone size-thumbnail wp-image-81" title="ex4" src="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex43-150x150.jpg" alt="" width="150" height="150" /></a> <a href="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex32.jpg"><img class="alignnone size-thumbnail wp-image-80" title="ex3" src="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex32-150x150.jpg" alt="" width="150" height="150" /></a> <a href="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex23.jpg"><img class="alignnone size-thumbnail wp-image-79" title="ex2" src="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex23-150x150.jpg" alt="" width="150" height="150" /></a> <a href="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex12.jpg"><img class="alignnone size-thumbnail wp-image-71" title="ex1" src="http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex12-150x150.jpg" alt="" width="150" height="150" /></a> </p> 

Sorry for the simple code :)

what should they use to extract the url, this code, but it does not work:

  NSRange start = [item.imageGallery rangeOfString:@"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/"]; NSRange end = [item.imageGallery rangeOfString:@"\" "]; int rangeLength = (int)(end.location - start.location); NSString *hrefString = [[NSString alloc] initWithString:[item.imageGallery substringWithRange:NSMakeRange(start.location, rangeLength)]]; NSLog(@"image url = %@",hrefString); 

Answer 1

Using the regular expression: "src=\"([^\"]+)\""

Here is a sample code:

 NSString *searchedString = @"" @"<p>" @"<a href=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex43.jpg\"><img class=\"alignnone size-thumbnail wp-image-81\" title=\"ex4\" src=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex43-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" /></a>" @"<a href=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex32.jpg\"><img class=\"alignnone size-thumbnail wp-image-80\" title=\"ex3\" src=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex32-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" /></a>" @"<a href=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex23.jpg\"><img class=\"alignnone size-thumbnail wp-image-79\" title=\"ex2\" src=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex23-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" /></a>" @"<a href=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex12.jpg\"><img class=\"alignnone size-thumbnail wp-image-71\" title=\"ex1\" src=\"http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex12-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" /></a>" @"</p>"; NSRange rangeOfString = NSMakeRange(0, [searchedString length]); //NSLog(@"searchedString: %@", searchedString); NSString *pattern = @"src=\"([^\"]+)\""; NSError* error = nil; NSRegularExpression* regex = [NSRegularExpression regularExpressionWithPattern:pattern options:0 error:&error]; NSArray *matchs = [regex matchesInString:searchedString options:0 range:rangeOfString]; for (NSTextCheckingResult* match in matchs) { NSLog(@"url: %@", [searchedString substringWithRange:[match rangeAtIndex:1]]); } 

NSLog Output:

 url: http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex43-150x150.jpg url: http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex32-150x150.jpg url: http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex23-150x150.jpg url: http://www.bubblesurprise.com/WPRESS_APP/wp-content/uploads/2012/02/ex12-150x150.jpg 

Answer 2

here, i found it for you:

fooobar.com/questions/397206 / ...

Code from this answer:

 NSDataDetector* detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypeLink error:nil]; NSArray* matches = [detector matchesInString:source options:0 range:NSMakeRange(0, [source length])]; 

Then to process the url (s):

 for (NSTextCheckingResult *match in matches) { NSURL *url = [match URL]; // do whatever you want with the url }